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 Post subject: Conundrum
PostPosted: Fri Apr 13, 2012 6:53 pm 
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Dapper Duck
Dapper Duck

Joined: Sat Nov 05, 2011 3:52 am
Posts: 27
Location: England
I do have a tendency to ask rather basic questions as I'm still very much a beginner at this genetics lark, so apologies in advance for yet another one. Thanks for your patience :)

If you wanted to expand the gene pool for silver birchens but had no birchens to cross them to, what would you do? I understand the need for ER and silver, but would crossing with something like black and then crossing the offspring (some presumably split for ER and S?) back to the birchens work in the long term?


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 Post subject: Re: Conundrum
PostPosted: Fri Apr 13, 2012 6:57 pm 
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Showy Hen
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Location: Netherlands
Best take a wheaten based breed/color like in silver sussex/light sussex breeding.
You might mistake the extended black gene for the birchen gene in the males.


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 Post subject: Re: Conundrum
PostPosted: Fri Apr 13, 2012 7:00 pm 
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Dapper Duck
Dapper Duck

Joined: Sat Nov 05, 2011 3:52 am
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Location: England
Ah, this is something I should've mentioned in the first post. I'm talking about sabelpoots here, so only have a very limited number of colours to work with in the UK :?


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 Post subject: Re: Conundrum
PostPosted: Fri Apr 13, 2012 11:00 pm 
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Dapper Duck
Dapper Duck

Joined: Sat Nov 05, 2011 3:52 am
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Location: England
Don't worry, I've figured it out :)


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 Post subject: Re: Conundrum
PostPosted: Sat Apr 14, 2012 6:59 pm 
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Showy Hen
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Maybe you are in luck and the millefleur are based on wheaten. But another base may works just as well. The recessive mottling might turn up in later generatios though. Use a birchen rooster.


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 Post subject: Re: Conundrum
PostPosted: Sun Apr 15, 2012 3:19 am 
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Dapper Duck
Dapper Duck

Joined: Sat Nov 05, 2011 3:52 am
Posts: 27
Location: England
Thank you. I'm hoping buff mottled (which I currently don't have) will produce some silver birchen offspring (pullets if I use a silver birchen cockerel?). I have silver millefleur, porcelain millefleur and the birchens but unless I import from the Continent the buff mottled seems the best option (I think!).


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 Post subject: Re: Conundrum
PostPosted: Sun Apr 15, 2012 6:48 pm 
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Showy Hen
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What are buff mottled? If they do not have black, don't use them.


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 Post subject: Re: Conundrum
PostPosted: Sun Apr 15, 2012 11:10 pm 
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Dapper Duck
Dapper Duck

Joined: Sat Nov 05, 2011 3:52 am
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Location: England
They do not have black but the calculator suggests I'll get 25% silver birchen pullets split for mottled :? The only alternatives are using one of my own silver millefleurs or one of the few other colours we have in the UK (lemon millefleur, gold mf, black etc)


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 Post subject: Re: Conundrum
PostPosted: Mon Apr 16, 2012 5:19 am 
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Showy Hen
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Location: Netherlands
silver millefleur is even better.
You don't want the black restrictors or dom.white in your birchens.


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 Post subject: Re: Conundrum
PostPosted: Mon Apr 16, 2012 6:33 am 
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Dapper Duck
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Location: England
Excellent, thank you so much! :D


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